Nations that seem strong/weak

[Archonsod]

Graeme Dice said:
A 10 blood slave cost for every single mage you recruit is not trivial. It's a massive cost that will become 30 or 40 slaves per turn at a minimum.

Infinitely cheaper than those nations who are stuck with something they can't do anything about - miasma, death dominions, loss of power on land and so forth.